EP 0591185 A4 19940518 - A PROCESS FOR STRIPPING AND REGENERATING FLUIDIZED CATALYTIC CRACKING CATALYST
Title (en)
A PROCESS FOR STRIPPING AND REGENERATING FLUIDIZED CATALYTIC CRACKING CATALYST
Publication
Application
Priority
- US 9104498 W 19910625
- US 51592390 A 19900427
Abstract (en)
[origin: US5043055A] A process and apparatus for achieving multistage, hot catalyst stripping of spent FCC catalyst in a bubbling bed regenerator having a stripper mounted over the regenerator and a stripped catalyst standpipe within the regenerator. Hot catalyst stripping is achieved by lifting regenerated catalyst into the conventional stripper or to a secondary catalyst stripper under the primary stripper. Spent catalyst is heated by direct contact heat exchange with hot regenerated catalyst. Three different types of lift gas may be used to transport catalyst from the regenerator to the hot stripper, a light reactive hydrocarbon, an inert, or steam.
IPC 1-7
IPC 8 full level
C10G 11/02 (2006.01); B01J 29/90 (2006.01); C10G 11/18 (2006.01)
CPC (source: EP KR US)
C10G 11/00 (2013.01 - KR); C10G 11/182 (2013.01 - EP US)
Citation (search report)
- [Y] WO 9011340 A1 19901004 - MOBIL OIL CORP [US]
- [Y] EP 0234924 A2 19870902 - ENGELHARD CORP [US]
- See references of WO 9300673A1
Designated contracting state (EPC)
BE DE FR GB IT NL
DOCDB simple family (publication)
US 5043055 A 19910827; EP 0591185 A1 19940413; EP 0591185 A4 19940518; JP H06508380 A 19940922; KR 940701438 A 19940528; WO 9300673 A1 19930107
DOCDB simple family (application)
US 51592390 A 19900427; EP 91913170 A 19910625; JP 51243491 A 19910625; KR 930703959 A 19931220; US 9104498 W 19910625